I am sorry for the long post.
We are a group of 8 (at least) that will be visiting Montreal over Christmas (December 22 - 26). We will be driving in, so we will hav cars. Some of us are interested in skiing, while others would like to spend more time in downtown. Some questions: Is it better to stay in downtown and then drive to the ski resort, or to stay in outside downtown? A lot would depend on the availability of public transportation; if we stay outside downtown, where would be the best place, with public transportation links into downtown? I assume that the skiers would have to drive to the slopes no matter where we stay. Also, in terms of other activities, are these open during Christmas? Are there any special activities during this time?